120212140 has 24 divisors (see below), whose sum is σ = 252695520. Its totient is φ = 48037248.

The previous prime is 120212129. The next prime is 120212143. The reversal of 120212140 is 41212021.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 120212140.

It is not an unprimeable number, because it can be changed into a prime (120212143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23449 + ... + 28111.

It is an arithmetic number, because the mean of its divisors is an integer number (10528980).

Almost surely, 2^120212140 is an apocalyptic number.

120212140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120212140 is an abundant number, since it is smaller than the sum of its proper divisors (132483380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120212140 is a wasteful number, since it uses less digits than its factorization.

120212140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5961 (or 5959 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 120212140 is about 10964.1296964237. The cubic root of 120212140 is about 493.5329005507.

Adding to 120212140 its reverse (41212021), we get a palindrome (161424161).

It can be divided in two parts, 12021 and 2140, that added together give a square (14161 = 119²).

The spelling of 120212140 in words is "one hundred twenty million, two hundred twelve thousand, one hundred forty".